Zinc-producing furnace.



A. ZAVELBERG.

ZINQ PRODUCING FURNACE.

APPMCATiON FILED AUG-25. 1914.

mmam, Patented Apr. 20,1915.

g Fig. 2. I a

Fig.1

a A e a U largetl.

ALBERT ZAVELBERG, F HOHENLOHEHIITTE, GERMANY.

ZINC-PRODUCING FURNACE.

Ll-flL-fU-l. Specification of Letters Patent. patgntgd A 20 19] 5Application filed August 25, 19M. Serial No. 858,525.

through the furnace, Fig. 2 is a horizontal sectional view, on the lineA-A of the Fig. 1, on an enlarged scale.

The preheating chamber I) is arranged above the upper shaft a. Thematerial .passes from the preheating chamber into the shaft chamber (Lby the channel (Z. The condensers a are arranged in front of the shaftchamber. Beneath the shafta is situ- To HW m it may mnmrn lie it lcnown'that I, ALnmrr ZavnLnmco, a :nbiect ol'ilie lhnperor of Germany, andresident of llohenlohehiitte, Germany, have invented certain new anduseful Improvements in Zinc-.lroducing Furnaces, of which the followinga specification.

Th n'csnt in\- I1tl0 relat s to furc 1 .c t n K c a nace for reducingvolatile metals. zinc, etc.

The furnace consists of a plurality of verated the lower shaft (2. Thematerial passes tical shafts, arranged alongside 'of each from the shafta by the channelj' into the other. These shafts are separated byvertishaft 0. Between the single shafts are sepacal walls. Eachshaftchamber has a prerating walls 9. In these walls are providedheating chamber and metal-vapor condensthe vertical layers of finelypulverized silieas.

ers. A second series of uniform shaft Claims:

chambers is arranged beneath the first se- 1. In a zinc producingfurnace the com ries. The upper shafts are correspomlingly bination of aplurality of vertical, superconnected to the upper shafts by transposedrows of shafts, preheating chan'lbersv ferring-channels above the upperrow of said shafts, a plu- Before charging the materials, the shaftsrality of juxtaposed chambers Within said are heated by passing heatinggases through shafts, walls separating said chambers, them, or in anyother convenient manner. means within said walls for producing gas Afterthat the mixture of ore and reducing tight partitions between each twoof said material is charged into the upper shafts, chambers, condensersin front of, and conafter its being preheated in the preheating nectedto the chambers of the various rows chamber. In the upper shafts theprocess of shafts, and'means for connecting the preis carried out until35% of the zinc oxid is heaters with the upper row and this upperreduced. The hot materials are then transrow with the lower row of saidshafts, subfcrred in the lower shafts and the reduction stantially asdescribed.

is completed therein. 2. In a zinc producing furnace the com- Thefurnace has the advantage of a more 'bination of a plurality ofvertical, supereomplete reduction, than by working a posed rows ofshafts, a preheating chamber single series of shafts, where there is noabove the upper row of said shafts, a ph possibility. of keeping up theten'iperature rality of juxtaposed chambers formed in long enough forthe completion of the proesaid shafts, walls separating each two of saidchambers, vertical layers of finely pulverized silicas within saidwalls, condensers in front of and connected to the chambers of thevarious rows of shafts, and means for eoi'mectin'g the preheater withthe upper, and the upper with the lower rows of shafts, substantially asdescribed.

In testimony nvhercof I atliX my'signaess. Also the shafts can be madewider, because the time of the material being treated therein isshorter, and the quantity of the material treated at one time can be en-To separate the single shafts air-tight l'roln -ach other verticallayers of pulverized silica are provided in the separating walls. Alsovertical heatingchannels can be ture in presence of two witnesses.provided In. these walls, if necessary. RT ZA VELBFRG A J n In the.accompanying drawings a con- \Vitnesscs Win- ELM Genes, EmcI-I FUN-K.

structimial form of the present invention is exemplified.

Figure 1 is a vertical sectional view

